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87 lines
1.8 KiB
87 lines
1.8 KiB
package external
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//go:generate errorgen
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import (
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"bytes"
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"io"
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"io/ioutil"
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"net/http"
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"net/url"
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"os"
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"strings"
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"time"
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"v2ray.com/core/common/buf"
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"v2ray.com/core/common/platform/ctlcmd"
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"v2ray.com/core/main/confloader"
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)
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func ConfigLoader(arg string) (out io.Reader, err error) {
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var data []byte
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if strings.HasPrefix(arg, "http://") || strings.HasPrefix(arg, "https://") {
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data, err = FetchHTTPContent(arg)
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} else if arg == "stdin:" {
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data, err = ioutil.ReadAll(os.Stdin)
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} else {
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data, err = ioutil.ReadFile(arg)
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}
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if err != nil {
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return
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}
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out = bytes.NewBuffer(data)
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return
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}
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func FetchHTTPContent(target string) ([]byte, error) {
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parsedTarget, err := url.Parse(target)
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if err != nil {
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return nil, newError("invalid URL: ", target).Base(err)
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}
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if s := strings.ToLower(parsedTarget.Scheme); s != "http" && s != "https" {
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return nil, newError("invalid scheme: ", parsedTarget.Scheme)
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}
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client := &http.Client{
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Timeout: 30 * time.Second,
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}
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resp, err := client.Do(&http.Request{
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Method: "GET",
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URL: parsedTarget,
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Close: true,
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})
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if err != nil {
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return nil, newError("failed to dial to ", target).Base(err)
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}
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defer resp.Body.Close()
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if resp.StatusCode != 200 {
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return nil, newError("unexpected HTTP status code: ", resp.StatusCode)
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}
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content, err := buf.ReadAllToBytes(resp.Body)
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if err != nil {
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return nil, newError("failed to read HTTP response").Base(err)
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}
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return content, nil
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}
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func ExtConfigLoader(files []string) (io.Reader, error) {
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buf, err := ctlcmd.Run(append([]string{"config"}, files...), os.Stdin)
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if err != nil {
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return nil, err
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}
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return strings.NewReader(buf.String()), nil
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}
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func init() {
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confloader.EffectiveConfigFileLoader = ConfigLoader
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confloader.EffectiveExtConfigLoader = ExtConfigLoader
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}
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